Waterproof neutral ink with nanometer level pigment and its prepn

Abstract

The waterproof neutral ink with nanometer level pigment consists of nanometer level material liquid 40 wt%, thickener 40-50 wt% and diluent 10-20 wt%, and has average size of 100-200 nm. The preparation process includes the following steps: setting the nanometer level material liquid in the compounding pot, adding the diluent while stirring, and stirring for further 30-90 min, adding the thickener, stirring for further 1-3 hr, and discharging. The neutral ink has bright color, stable quality, writing fluency and other advantages, and may be filled into different kinds of pens.

Description

technical field

[0001] The invention relates to a gel pen ink, in particular to a nanoscale pigment waterproof gel pen ink and a manufacturing method thereof, belonging to the technical field of ink. Background technique

[0002] At present, the high-grade special pen ink sold in the domestic and foreign markets has changed from dye type to pigment type. Compared with the dye type, a nano-scale pigment gel pen ink can effectively solve the problems of fading and bleeding, but the pigment type gel pen ink produced by the ordinary production process and formula has a large particle size, which affects Its permeability prolongs the drying time, and there will be plugging, disconnection, uneven ink output and other phenomena.

[0003] Pigment-based inks are colored by dispersing fine particles of pigments in the medium used. The ideal dispersion system should have a "primary (primary) particle" pigment dispersion state. Nanoization of primary pigment particles will improve the ...